Thrust control malfunction accomodation system and method

(19)

(11)

EP 1 350 942 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	29.09.2004 Bulletin 2004/40

(43)	Date of publication A2:
	08.10.2003 Bulletin 2003/41

(21)	Application number: 03075993.0

(22)	Date of filing: 03.04.2003

(51)	International Patent Classification (IPC)⁷: F01D 21/14, F02C 9/46

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

(30)

Priority:

04.04.2002 US 116655

(71)	Applicant: THE BOEING COMPANY
	Seattle, Washington 98124-2207 (US)

(72)	Inventors:
	Ostrom, Grazyna Balut Auburn, Washington 98001 (US) Brown, Kevin Kent, Washington 98032 (US) Fung, Kenny L. Lynnwood, Washington 98037 (US) Ghayem, Shahrokh Seattle, Washington 98116 (US)

(74)	Representative: Land, Addick Adrianus Gosling et al
	Arnold & Siedsma Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)

(54)	Thrust control malfunction accomodation system and method

(57) A system for detecting and correcting a thrust control malfunction in an aircraft engine. The system includes an electronic engine control (EEC) (18) unit that includes a first processing subsystem (A) and a second processing subsystem (B), and a thrust control malfunction accommodation (TCMA) circuit (16) included in the first processing subsystem and the second processing subsystem. Additionally, the system includes a TCMA software package executed by the first processing subsystem (A) and the second processing subsystem (B), thereby providing redundant execution of the TCMA software package.

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